Lip and teeth for excavating buckets



Feb. 23 1926. 1,574,444 N.H.REYNQLDS LIP AND TEETH FOR EXCAVATING BUCKETS.

Filed Jan. 14, 1925 I NELZZO $711013;

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Patented Feb. 23, 1926.

PATENT OFFICE."

NAZBO n. nnxnomas, or oaxmusrn, earn-01mm LII AND TEETH FOB EXOAVATING IBUGKETS.

Application filed January 14,1925. Serial No. 2,424.

To all whom it may concern.-

Be it known that I, NAZRO H. REYNOLDS, a citizen of the United States, residing at Oakland, in the county of Alameda, btate of California, have invented certain new and useful Improvements in Lips and Teeth for Excavatin Buckets; and I do hereby declare the ollowing to be a full, clear, and exact description of the invention, such as will enable others skilled] in the art to which it appertains to make and use the same.

Th1s invention relates to new and useful improvements in excavating devices, and particularly to excavating buckets.

One object of the invention is to provide a bucket of this character with a separate lip and digging teeth, the same being fastened to the open front of the bucket,

. whereby to reinforce the front of the bucket.

Anot er ob'ect is to cast, in one piece, the lip and the igging teeth, whereby the lip and teeth may be properly secured to the mouth of the bucket, as a unit, the teeth having removable points.

Another object is to provide a. lip for an excavating bucket which has the integral attaching extensions, as well as the digging .teeth and bottom ribs.

Other objects and advantages will be apparent from the following description when taken in connection with the accompanying drawing.

In the drawing:

Figure 1 is a perspective view of an excavating bucket having the improved lip and teeth thereon.

Figure 2 is a perspective view of the lip. and teeth removed from the bucket.

Figure 3 is an inverted perspective view of the parts shown in Figure 2.

Figure 4 is a perspective view of the working end of one of the teeth, showing the removable point.

Referring particularly to the accompanying drawings, 10 represents the body of the excavating bucket to which the improved lip and teeth are secured.

Referring particularly to Figures 2 and 3, there is shown the device removed from the bucket, and in which 11 represents the transverse bottom portion of the lip, and 12 the vertical side portions thereof. The portion 11, as seen in Figure 1, extends transversely beneath the bottom portion of the front, or open end of the bucket 10, while the vertical portions 12 lie against the outer faces of the side ortions of the open end of the bucket. ormed integrally with the portion 11, and extending transversel thereof, are the bars 13, the forward end portions of which project forwardly of the forward edgeof said portion 11, to form the dig 'ng teeth 14, while the rear ends of said b urs extend rearwardly of the rear edge of the portion 11, as shown at 15, these latter portions being riveted to the bottom of the bucket, to combine with the teeth 14, and the intermediate portions of the bars to form runners or skids for the bucket. The vertical portions 12, of the lip, are also properly riveted to the side portions of the front. end of the bucket, thus serving to reinforce the front of the bucket against wear, and also to provide for rigidity thereat.

The lip and bars are cast in a single piece, and then provided with the rivet openings, so that the device may secured to the bucket. Ifdesired, t e forward ends of the teeth 1.4 may be formed as shown in Figure 4, wherein the said end of the'tooth is formed with a transverse undercut shoulder 16, at a suitable distance rearwardly of the terminal thereof, and on the lower face. The lower face of the tooth, from the shoulder to the front end thereof is upwardly inclined to a slight degree, and engaged on the said end of the tooth is the removable point 17. The upper face of this point is formed with a transverse underbeveled groove 18, within which is received the portion of the lower face of the tooth which lies between the shoulder and the front end of the tooth, the forward end'of the tooth bein seated beneath the shoulder at the forwar side of theove. A rivet 19 is passed verticall through the tooth and the point, where y to hold the same thereon. The point is applied to the tooth from one side, as will be apparent from, Figure 4.

It will also be noted. that the lip extends.

forwardly of the front end of the bucket,

whereby to take the greater part of the wear incident to the operation of the bucket.

lVhat is claimed is:

1. The combination with an excavatin bucket, of a lip secured to the bucket and including a transverse bottom portion secured to the bottom of the front of the bucket and vertical side portions secured be easily and uickly to the sides of the front of the bucket, and integral bars on the lower face of said bottom portion extending forwardly of the bucket to provide digging fingers'and rearwardly thereof to provide attaching fingers and runners for the bottom of the bucket.

2. A lip1 for an excavating bucket including a U- aped member, transverse integral bars on the member and extending for- 10 wardly and rearwardly thereof, the forwardly extending portions of said bars having removable points, the forwardly extending portion of each of the bars and said pomts having, respectively, a transverse 15 dovetail rib and a dovetail groove, the

groove and rib being interlocked, and securing means disposed through the engaged rib and groove.

3. As an article of manufacture, a lip for an excavating bucket comprising a U-shaped ortion, bars extending transversely of the ower face of the transverse portion of the U-shaped member and projecting forwardl of such portion to provide di ging teet and rearwardly thereof to provi fin ers and runners, portions of the forward en of the bars extending rearwardly in spaced relation above said transverseportion of the U-shaped member.

y In testimony whereof, I afiix my signature- "NAZRO, H. REYNOLDS e attaching 25 

